利用扫描电镜/能谱仪和X-射线衍射仪鉴别假“冰毒”

冰毒为纯白或淡黄色结晶体,为利益所驱,很多制贩毒者利用其它外观相似的晶体充当替代品或者掺杂剂,在常规检测时,用气/质联用仪无法检验其成分。本文利用扫描电镜/能谱仪和X-射线衍射仪对外观酷似"冰毒"的晶状物成分进行检测,先利用扫描电镜/能谱仪测定未知物主要元素,再利用X-射线衍射仪测定其晶体结构和成分。两者有效结合成功地鉴别假"冰毒"物质的成分。     

Crimea and the quest for energy and military hegemony in the Black Sea region: governance gap in a contested geostrategic zone

Russia’s annexation of Crimea and its destabilization of Eastern Ukraine have radically altered the European security order, with the Black Sea region becoming an acutely contested geostrategic zone. Russia’s strategic interests in the Black Sea region, especially in terms of energy and military presence, collide with those of Ukraine, Turkey, the European Union and the United States, among others, and expose the governance gap left by the existing conventions and institutions in dealing with the region. It is argued that Russia’s move to annex Crimea was a strategic decision made irrespective of the destructive effect on the post-Cold War order. Furthermore, until a new normal has been accepted by the main players, there is no hope of revising the existing conventions and institutions pertaining to the basin.     

当前泰国的能源问题

本文对泰国的电力能源的供应和需求状况进行了分析汇总，同时对该国电力能源发展的一些可能性障碍进行了分析，透过泰国电力能源发展的道路可以体现泰国经济发展的道路。     

The Implementation of the UN Framework Convention on Climate Change in a Non-Party State: Taiwan

This article introduces the implementation of the Framework Convention on Climate Change in a non-Party state: Taiwan. It examines the reasons why Taiwan as a non-Party decided to voluntarily comply with the FCCC. The institutional and legal settings for an effective implementation, as well as the implementation strategies put forward by the Taiwanese academics and manifested by the government will be discussed. Critique of the implementation strategies pursued by the government, and external and domestic obstacles for an effective implementation will be investigated as well.     

国际政治背景下东北亚多边能源合作机制的构建

伴随着世界石油市场价格的波动和国际形势的深刻变化,能源问题越来越成为东北亚各国关注的焦点问题。参照国际经验,解决东北亚区域能源安全的一个重要途径就是建立区域多边能源合作机制。从国际政治角度来看,在东北亚构建多边能源合作机制有其必要性、可能性和现实性。     

BLM,the Administrative Presidency,and Policy Shifts: Policy Tools Affecting Oil and Gas Operations

This paper addresses change in oil and gas policies pushed by the U.S. Bureau of Land Management (BLM) during the administrations of Presidents George W. Bush and Barack Obama. Administrative policy changes occurred not only because of election outcomes and the emergence of new governing coalitions but BLM's selective utilization of policy tools such as rulemaking, planning, environmental impact analyses, and the use of discretionary authority to increase or relax enforcement decisions. The data reveal that BLM put more emphasis on the use of discretionary authority to limit environmental inspections and to limit environmental reviews of proposed drilling projects under Bush while agency officials gave priority to adopting new planning procedures to allow greater stakeholder input under Obama as well as increasing the number of environmental inspections.     

Policy Change,Policy Feedback,and Interest Mobilization: The Politics of Nuclear Waste Management

Many of the leading theories of the policy process are aimed at providing insights into the factors that make policy change more (or less) likely. In general, policy change is seen as a result of shifting dynamics within policy subsystems. However, building on theories of policy feedback and interest mobilization, this article examines whether policy change, apart from being an effect of subsystem dynamics, can be a cause of shifting dynamics as latent actors are motivated to participate in the subsystem as a result of policy change. Two hypotheses regarding post‐policy change mobilization are developed and tested using data on participation in congressional hearings concerning the management of nuclear waste. The findings suggest that policy change can activate latent policy actors, specifically those actors that view themselves as “losing” as a result of the policy change. These results point to the need for scholars to examine the potential impacts of post‐policy change dynamics on policy development.     

‘This loopy idea’ an analysis of UKIP’s social media discourse in relation to rurality and climate change

This paper focuses on the way that United Kingdom Independence Party (UKIP) attempted to communicate its policies and messages about the topic of renewable energy during 2013–2014. Renewable energy is a fruitful topic to consider as it has a strategic importance in the discussion of the future of the UK. The emergent theme from the analysis was not only rurality and renewable energy but the connection of the issue to scepticism about climate change. This paper uses the qualitative analyses the social media posts and a sample of the linked materials, with newspaper coverage, to reveal the key themes in the UKIP discourse.     

Analytical Characterization of Erythritol Tetranitrate,an Improvised Explosive

Erythritol tetranitrate (ETN), an ester of nitric acid and erythritol, is a solid crystalline explosive with high explosive performance. Although it has never been used in any industrial or military application, it has become one of the most prepared and misused improvise explosives. In this study, several analytical techniques were explored to facilitate analysis in forensic laboratories. FTIR and Raman spectrometry measurements expand existing data and bring more detailed assignment of bands through the parallel study of erythritol [¹⁵N₄] tetranitrate. In the case of powder diffraction, recently published data were verified, and ¹H, ¹³C, and ¹⁵N NMR spectra are discussed in detail. The technique of electrospray ionization tandem mass spectrometry was successfully used for the analysis of ETN. Described methods allow fast, versatile, and reliable detection or analysis of samples containing erythritol tetranitrate in forensic laboratories.     

The Effects of Environmental Exposure on the Optical,Physical, and Chemical Properties of Manufactured Fibers of Natural Origin

Manufactured fibers derived from natural origins include viscose rayon, azlon, and polylactic acid (PLA). A 2‐year study was conducted to document any changes these fibers undergo as a result of exposure to various environmental conditions. Fabric swatches representing each fiber type were exposed to freshwater, saltwater, heat, cold, ultraviolet light, or composter conditions. Fibers from the swatches were periodically analyzed using polarized light microscopy and Fourier transform infrared microspectroscopy. Fiber solubility and melting‐point behavior were measured every 6 months. Except for the complete degradation of viscose rayon in the composter, saltwater, and freshwater environs, no changes in the optical properties, infrared spectra, solubility, or melting points of the remaining fibers in any of the environments were observed. However, microscopic morphological changes were observed in fibers from two azlon swatches submerged in freshwater and saltwater, two PLA swatches exposed to ultraviolet light, and two viscose rayon swatches exposed to ultraviolet light.